On the subject of office roles being stimulating (or not) - unless you work in a couple of very limited fields which actually create new things, pretty much every job becomes routine and mundane quite quickly. Just as flying an aircraft involves SOP, facilitating most processes in the majority of businesses relies heavily upon set procedures and protocols. So, whatever you end up doing in that office - chances are that you won't reinvent the hot water, just as you won't by flying commercially. Therefore, any long-term choice boils down to desired lifestyle, income and prospects.